Reviews Test Phase

Extech - EXT380976-K 380976-K Single Phase/Three Phase 1000A AC Power Clamp Meter Kit

Measures True Power, Apparent Power, Reactive Power, Horsepower, Power Factor, and Phase Angle with Lead/Lag indicator.
AC+DC µA current with 10nA resolution for flame rod tests.
Auto Detect AC/DC Voltage measurements with simultaneous frequency display.

【Item Main Purpose】This phase sequence protector is mainly used for various fault detection of 3-phase voltage.not easy to be damaged, can be used for a long time without worry..
【5 Indicators To Indicate】Normal, phase loss (voltage three-phase unbalance), reverse phase, overvoltage and undervoltage.We fully guarantee the quality of our products.Please rest assured to buy our items..
【Full-Featured】It integrates three-phase voltage display, over-voltage protection, under-voltage protection, phase-gap protection (phase-break protection), three-phase voltage unbalance protection, phase sequence protection (phase-staggered protection) and acoustooptic alarm..
【Installation Method】The base of the protector adopts a rail type with two screw holes, which can be directly installed separately or mounted on the HT35 rail..
【Application Scenarios】This phase sequence protector is widely used in air compressor, motor distribution box, pump, central air conditioning units, power distribution cabinet, crane, etc.Safety using. If you still have any questions, please send us emails, we're available 24 hours..

The meter can only measure the active power(real power). It doesn’t show Apparent power. If you measure power from a DC-AC inverter please make sure it’s PURE SINE WAVE. Otherwise the meter can be burnt or melted.
Voltage test range: One-Phase 80~260V AC Power, 50/60HZ.
Store energy data when power off(can be reset)..
Large-screen LCD (display voltage, current, active power, energy at the same time)..
The blue backlight can be turned on/off manually. The CT can be either on Live line or Neutral Line..

Dual-phase formula delivers double the power: cooling gel phase helps deeply hydrate and correct while cream phase helps neutralize stressors and lock....

Tubes are handpicked from balanced inventory.
Triodes are balanced within 3% for both gain and conductance.
Perfect for phase inverter in a guitar amp or for use in Hi-Fi amps.
Will have test readings written on the box.
Performance which surpasses NOS original in all areas. Big, warm and very musical. Superb linearity with a dynamic 3-D sound..

Easy To Use - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal.
if the red LED light is on, the relay is abnormal..
To Operate - First, clip the alligator clip of the tester to the car battery, the black clip on the negative pole, and the red clip on the positive pole. When the red LED light is on, it means the tester can start the test. Check the relay before testing. Select the appropriate socket according to the pins, insert the relay into sockets, press the "Test" button, and the tester will automatically detect the pin position of the unknown relay..
Fitment - Suitable for most general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. The car battery must be a 12V battery, and the battery voltage must be between 11V-15V.
2. The applicable coil resistance is preferably above 20 ohms..
Compact - Our automotive Relay tester is small and easy to carry around for on-the-go jobs or for easy storage. Its compact design allows easy use no matter where you are..
Simple and Quick - With our patented design this relay tester will give you the ....

The base of the protector adopts a rail type with two screw holes, which can be directly installed separately or mounted on the HT35 rail..
Use 5 indicators to indicate: normal, phase loss (voltage three-phase unbalance), reverse phase, overvoltage and undervoltage..
Phase loss protection means that when the protected line is in the running state or non-operating state, any phase failure occurs, and the delay is 2S..
Overvoltage protection means that the voltage of the protected line is higher than the set value, and the delay is 3~8S, and the recovery is 6~20VAC..
Reverse phase protection, a protection measure to prevent L1, L2, L3 three-phase AC phase sequence from being connected incorrectly, delay 2S action..

3 INDICATORS-The protector base adopts 35mm rail type or device type, and has two screw hole structures inside, which can be directly installed separately or HT35 rail. Indicated by three indicators: normal, phase loss(voltage three-phase unbalance), reverse phase.
PHASE LOSS PROTECTION-Phase loss protection means that when the protected line is in the running state or non-operating state, any phase failure occurs, and the delay is 2S.
REVERSE PHASE PROTECTION-Reverse phase protection, a protection measure to prevent L1, L2, L3 three-phase AC phase sequence from being connected incorrectly, delay 2S action.
VOLTAGE IMBALANCE PROTECTION-Voltage imbalance protection, which refers to a protective measure that will affect the safe operation of the line due to three-phase voltage imbalance.
IDEAL FOR-Widely used in air compressors, electric motors, distribution boxes, water pumps, oil pumps, central air conditioning units, etc.

See all sketch images for more details, NEMA standard.
60 Hz, 1/2 HP, 115/230 V capacitor start, Single phase, 3500 RPM.
Built-in overload with automatic reset, Stainless steel shaft, Pressure regulator included..
Rotation: clockwise when viewed from motor end, UL778 listed.
Pipe connections: 1.25" NPT suction and 1" NPT discharge, Pressure switch: AS4 preset (30-50 PSI)..
Note : All Pumps, Are Tested By The Manufacture, Prior To Shipping. At Times You Will Encounter A Smalll Amount Of Water Residue Left Over From The Test..